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Numerical investigation of thermo-physical properties of non-newtonian fliud in a modelled intestine

Journal of Bioresources and Bioproducts 2020年第3期5卷 211-221页

作者： S.E.Ibitoye I.K.Adegun P.O.Omoniyi T.S.Ogedengbe O.O.Alabi Department of Mechanical Engineering University of IlorinPMB 1515IlorinNigeria Department of Mechanical Engineering Elizade UniversityNigeria

Several kinds of researches have been conducted on peristaltic flow of non-Newtonian fluid in modelled oesophagus,stomach and ***,further investigation is still needed es-pecially in the area of mechanical shear stress,the influence of inlet temperature and velocity,Nutsselt number and the history of strain rates experienced by fluid *** study presents the numerical investigation of thermo-physical properties of non-Newtonian fluid in a modelled *** properties investigated were fluid temperature,velocity,Nutsselt number and wall shear *** simulation was performed by solving 3D Navier-Stokes and continuity *** intestinal model was drawn by using Autodesk Inventor 2017 while the numerical investigation was conducted by using ANSYS FLUENT *** Computational Fluid Dynamics solver employs the Finite Element Method(FEM)to discretize the governing ***,Hibiscus Sabdariffa Roselle(Sobo),Soymilk(Soya)and Pap(Ogi)were the working fluids used for the *** of the results showed that the variation of fluid temperature and heat transfer with axial position across the length of intestinal model were not significantly influenced by the variation of the inlet *** of the model about the pulsating part enhanced heat transfer and nutrient delivery to the intestinal *** of the inlet velocity did not affect the average Nutsselt *** and Sobo had the highest and lowest Nutsselt number,*** displayed the best fluid properties considering flow behaviour while Soya dis-played the best properties for thermal *** results presented in this study are of countless importance in medical,paramedical,engineering applications,thermoregulation system,ther-motherapy,and biomedical disciplines,where analyses and investigation of gastrointestinal tract history can be understudied.

关键词： Axial position Flow temperature Flow velocity Heat transfer modelled intestine

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